// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/views/controls/focusable_border.h"

#include "third_party/skia/include/core/SkPaint.h"
#include "third_party/skia/include/core/SkPath.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/geometry/insets.h"
#include "ui/gfx/skia_util.h"
#include "ui/native_theme/native_theme.h"

namespace {

const int kInsetSize = 1;

} // namespace

namespace views {

FocusableBorder::FocusableBorder()
    : insets_(kInsetSize, kInsetSize, kInsetSize, kInsetSize)
    , override_color_(SK_ColorWHITE)
    , use_default_color_(true)
{
}

FocusableBorder::~FocusableBorder()
{
}

void FocusableBorder::SetColor(SkColor color)
{
    override_color_ = color;
    use_default_color_ = false;
}

void FocusableBorder::UseDefaultColor()
{
    use_default_color_ = true;
}

void FocusableBorder::Paint(const View& view, gfx::Canvas* canvas)
{
    SkPath path;
    path.addRect(gfx::RectToSkRect(view.GetLocalBounds()), SkPath::kCW_Direction);
    SkPaint paint;
    paint.setStyle(SkPaint::kStroke_Style);
    SkColor color = override_color_;
    if (use_default_color_) {
        color = view.GetNativeTheme()->GetSystemColor(
            view.HasFocus() ? ui::NativeTheme::kColorId_FocusedBorderColor : ui::NativeTheme::kColorId_UnfocusedBorderColor);
    }

    paint.setColor(color);
    paint.setStrokeWidth(SkIntToScalar(2));

    canvas->DrawPath(path, paint);
}

gfx::Insets FocusableBorder::GetInsets() const
{
    return insets_;
}

gfx::Size FocusableBorder::GetMinimumSize() const
{
    return gfx::Size();
}

void FocusableBorder::SetInsets(int top, int left, int bottom, int right)
{
    insets_.Set(top, left, bottom, right);
}

} // namespace views
